Bearing ring

Abstract

A bearing ring has first and second cylindrical surfaces, first and second annular side surfaces and at least one compensation element attached to the bearing ring, preferably in a groove at a junction of the first cylindrical surface and the first annular side surface. The bearing ring is manufactured from a first material having a first coefficient of thermal expansion and is configured to be connected to a component that is manufactured from a second material having a second coefficient of thermal expansion, and the at least one compensation element is manufactured from a third material having a coefficient of thermal expansion that is greater than or equal to the coefficient of thermal expansion of the second material. Also a bearing assembly including the bearing ring and the component.

What is claimed is: 
     
       1. A bearing assembly comprising:
 a first bearing ring and a second bearing ring configured to rotate relative to the first bearing ring, the first bearing ring including a first cylindrical surface, a second cylindrical surface, a first annular side surface, a second annular side surface and a first annular groove at a junction of the first cylindrical surface and the first annular side surface, 
 a component configured to support the first bearing ring, and 
 a first compensation ring mounted in the first annular groove, 
 wherein the first annular groove is open to the first cylindrical surface and the first annular side surface, 
 wherein the first bearing ring is formed from a first material having a first coefficient of thermal expansion and the component is formed from a second material having a second coefficient of thermal expansion and the compensation ring is formed from a third material having a third coefficient of thermal expansion, 
 wherein the third coefficient of thermal expansion is greater than or equal to the second coefficient of thermal expansion, 
 wherein the first material is bearing steel, 
 wherein the second and third materials are metal, and 
 wherein the first bearing ring is connected to the component such that the first cylindrical surface of the bearing ring and a cylindrical metal surface of the compensation ring contact the component. 
 
     
     
       2. The bearing assembly according to  claim 1 ,
 wherein the third material is identical to the second material. 
 
     
     
       3. The bearing assembly according to  claim 1 ,
 including a second annular groove at a junction of the first cylindrical surface and the second annular side surface and a second compensation ring in the second annular groove. 
 
     
     
       4. The bearing assembly according to  claim 1 ,
 wherein the first bearing ring is an outer bearing ring, 
 wherein the first cylindrical surface is an outer surface of the first bearing ring, 
 wherein the component includes an opening, and 
 wherein the first bearing ring is mounted in the opening. 
 
     
     
       5. The bearing assembly according to  claim 1 ,
 wherein the first compensation ring is connected to the first bearing ring by a press fit. 
 
     
     
       6. The bearing assembly according to  claim 1 ,
 wherein the second material and the third material comprise aluminum. 
 
     
     
       7. A bearing assembly comprising:
 a first bearing ring and a second bearing ring configured to rotate relative to the first bearing ring, the first bearing ring including a first cylindrical surface, a second cylindrical surface, a first annular side surface, a second annular side surface and a first annular groove at a junction of the first cylindrical surface and the first side surface, 
 a component configured to support the first bearing ring, and 
 a first compensation ring mounted in the first annular groove, 
 wherein the first annular groove is open to the first cylindrical surface and the first annular side surface, 
 wherein the first bearing ring is formed from a first material having a first coefficient of thermal expansion and the component is formed from a second material having a second coefficient of thermal expansion and the compensation ring is formed from a third material having a third coefficient of thermal expansion, 
 wherein the third coefficient of thermal expansion is greater than or equal to the second coefficient of thermal expansion, 
 wherein the first bearing ring is connected to the component such that the first cylindrical surface of the bearing ring and a cylindrical surface of the compensation ring contact the component, 
 wherein the first compensation ring is connected to the first bearing ring by a press fit, 
 wherein the first bearing ring is connected to the component by a press fit, and 
 wherein an overlap between the first bearing ring and the component is different than an overlap between the first bearing ring and the first compensation ring. 
 
     
     
       8. The bearing assembly according to  claim 7 ,
 wherein the overlap between the first compensation ring and the first bearing ring is greater than the overlap between the component and the first bearing ring. 
 
     
     
       9. The bearing assembly according to  claim 8 ,
 wherein second material and the third material comprise aluminum. 
 
     
     
       10. The bearing assembly according to  claim 8 ,
 including a second annular groove at a junction of the first cylindrical surface and the second side surface, and 
 a second compensation ring in the second groove, 
 wherein a coefficient of thermal expansion of the second compensation ring is greater than or equal to the second coefficient of thermal expansion. 
 
     
     
       11. A bearing assembly comprising:
 a first bearing ring and a second bearing ring configured to rotate relative to the first bearing ring, the first bearing ring including a first cylindrical surface, a second cylindrical surface, a first annular side surface, a second annular side surface and a first annular groove in the first cylindrical surface, 
 a component configured to support the first bearing ring, and 
 a first compensation ring mounted in the first annular groove, 
 wherein the first bearing ring is formed from a first material having a first coefficient of thermal expansion and the component is formed from a second material having a second coefficient of thermal expansion and the compensation ring is formed from a third material having a third coefficient of thermal expansion, 
 wherein the third coefficient of thermal expansion is greater than or equal to the second coefficient of thermal expansion, 
 wherein the first material is bearing steel, 
 wherein the second and third materials are metal, and 
 wherein the first bearing ring is connected to the component such that the first cylindrical surface of the bearing ring and a cylindrical metal surface of the compensation ring contact the component. 
 
     
     
       12. The bearing assembly according to  claim 11 ,
 wherein the second and third materials comprise aluminum. 
 
     
     
       13. The bearing assembly according to  claim 11 ,
 including a second annular groove in the first cylindrical surface, and 
 a second compensation ring in the second annular groove, 
 wherein the second compensation ring is formed of a metal having a coefficient of thermal expansion greater than or equal to the second coefficient of thermal expansion. 
 
     
     
       14. The bearing assembly according to  claim 13 ,
 wherein the second compensation ring is formed from a same material as the first compensation ring. 
 
     
     
       15. The bearing assembly according to  claim 13 ,
 wherein the first annular groove is open to the first cylindrical surface and the first annular side surface and the second annular groove is open to the first cylindrical surface and the second annular side surface.